Geoff Decker / Chalkbeat More than three-quarters of Colorado’s students learning English as a second language took their annual state tests on English fluency this spring. That’s after a campaign from advocates first sought to cancel the tests, and after failing, turned to teaching parents that it was their right to keep children from taking the test, if they felt unsafe going to school buildings. The participation rate is lower than usual, which is prompting state education officials to further analyze results to see how useful they may prove in giving educators a big-picture look at how English language learners statewide have fared during the pandemic and whether they progressed in English proficiency.